Implementations of a method of forming a wax ether composition may include: providing a batch of lipids, drying the batch of lipids, and cooling the batch of lipids. The method may also include dosing, with a catalyst, the batch of lipids at 0.1% to 0.3% by weight of the batch of lipids and dissolving the catalyst in the batch of lipids to form a homogenous solution. The method may include adding at least a molar equivalent of a hydrogen donor to the homogenous solution. The method may include sealing and maintaining the homogenous solution and hydrogen donor under atmospheric pressure under reflux until a chemical reaction between the homogenous solution and the hydrogen donor forms a product comprising an ether.

Implementations of a method of forming a wax ether composition may include: providing a batch of lipids, drying the batch of lipids, and cooling the batch of lipids. The method may also include dosing, with a catalyst, the batch of lipids at 0.1% to 0.3% by weight of the batch of lipids and dissolving the catalyst in the batch of lipids to form a homogenous solution. The method may include adding at least a molar equivalent of a hydrogen donor to the homogenous solution. The method may include sealing and maintaining the homogenous solution and hydrogen donor under atmospheric pressure under reflux until a chemical reaction between the homogenous solution and the hydrogen donor forms a product comprising an ether.

Implementations of a method of forming a wax ether composition may include: providing a batch of lipids, drying the batch of lipids, and cooling the batch of lipids. The method may also include dosing, with a catalyst, the batch of lipids at 0.1% to 0.3% by weight of the batch of lipids and dissolving the catalyst in the batch of lipids to form a homogenous solution. The method may include adding at least a molar equivalent of a hydrogen donor to the homogenous solution. The method may include sealing and maintaining the homogenous solution and hydrogen donor under atmospheric pressure under reflux until a chemical reaction between the homogenous solution and the hydrogen donor forms a product comprising an ether.

Implementations of a method of forming a wax ether composition may include: providing a batch of lipids, drying the batch of lipids, and cooling the batch of lipids. The method may also include dosing, with a catalyst, the batch of lipids at 0.1% to 0.3% by weight of the batch of lipids and dissolving the catalyst in the batch of lipids to form a homogenous solution. The method may include adding at least a molar equivalent of a hydrogen donor to the homogenous solution. The method may include sealing and maintaining the homogenous solution and hydrogen donor under atmospheric pressure under reflux until a chemical reaction between the homogenous solution and the hydrogen donor forms a product comprising an ether.

The present invention provides a method for directly preparing glycol dimethyl ether and co-producing ethylene glycol from ethylene glycol monomethyl ether. More specifically, the method comprises passing a feedstock containing a raw material of ethylene glycol monomethyl ether and a carrier gas through a reactor loaded with a solid acid catalyst to produce glycol dimethyl ether and ethylene glycol, at a reaction temperature range from 40 C. to 150 C. and a reaction pressure range from 0.1 MPa to 15.0 MPa; wherein a carrier gas is an optional inactive gas; and the feedstock contains water whose volume concentration in the feedstock is in a range from 0% to 95%; and the weight hourly space velocity of the raw material of ethylene glycol monomethyl ether is in a range from 0.05 h.sup.1 to 5.0 h.sup.1; and the volume concentration of the raw material of ethylene glycol monomethyl ether in the feedstock is in a range from 1% to 100%; and the volume concentration of the carrier gas in the feedstock is in a range from 0% to 99%. In the method of the present invention, using a solid acid as a catalyst and ethylene glycol monomethyl ether as a raw material, under a low temperature condition, glycol dimethyl ether and ethylene glycol are prepared directly with high selectivity; moreover, there is substantially or completely no production of by-product 1,4-dioxane that causes pollution to the environment and is harmful to the human body or animal bodies.

The present invention provides a method for directly preparing glycol dimethyl ether and co-producing ethylene glycol from ethylene glycol monomethyl ether. More specifically, the method comprises passing a feedstock containing a raw material of ethylene glycol monomethyl ether and a carrier gas through a reactor loaded with a solid acid catalyst to produce glycol dimethyl ether and ethylene glycol, at a reaction temperature range from 40 C. to 150 C. and a reaction pressure range from 0.1 MPa to 15.0 MPa; wherein a carrier gas is an optional inactive gas; and the feedstock contains water whose volume concentration in the feedstock is in a range from 0% to 95%; and the weight hourly space velocity of the raw material of ethylene glycol monomethyl ether is in a range from 0.05 h.sup.1 to 5.0 h.sup.1; and the volume concentration of the raw material of ethylene glycol monomethyl ether in the feedstock is in a range from 1% to 100%; and the volume concentration of the carrier gas in the feedstock is in a range from 0% to 99%. In the method of the present invention, using a solid acid as a catalyst and ethylene glycol monomethyl ether as a raw material, under a low temperature condition, glycol dimethyl ether and ethylene glycol are prepared directly with high selectivity; moreover, there is substantially or completely no production of by-product 1,4-dioxane that causes pollution to the environment and is harmful to the human body or animal bodies.

The present invention relates to a Si/Al zeolite catalyst with cubical morphology, having pore diameter in the range of 0.5 to 0.6 ?m, pore volume in the range of 0.2 to 0.3 cc/g, surface area in the range of 500 to 700 m.sup.2/g, and SiO2/Al2O3 ratio in the range of 30 to 200. The present invention also relates to a process for its preparation and its application in one step, one pot synthesis of ether.

The present invention relates to a Si/Al zeolite catalyst with cubical morphology, having pore diameter in the range of 0.5 to 0.6 ?m, pore volume in the range of 0.2 to 0.3 cc/g, surface area in the range of 500 to 700 m.sup.2/g, and SiO2/Al2O3 ratio in the range of 30 to 200. The present invention also relates to a process for its preparation and its application in one step, one pot synthesis of ether.

The present invention concerns a method for producing for producing and purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and chloromethane (40), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; (b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and chloromethane (40); and (ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene (1234yf); (c) recovering and separating said third composition, preferably by distillation, in order to form a stream comprising said organic extractant and a stream comprising chloromethane (40).

A surfactant for use in an automatic dishwashing composition is provided, wherein the surfactant is a glycidyl ether-capped ethoxylated alcohol as noted in formula I. Wherein R.sub.1 is a linear, saturated C.sub.8-24 alkyl group, R.sub.2 is a linear or branched saturated C.sub.6-20 alkyl group, m has an average value of 10 to 50, and n has an average value of >1 to 2. Also provided are automatic dishwashing compositions comprising said surfactant. ##STR00001##